Centrifugal pump.



D. v. BURRELL.

OENTRIFUGAL PUMP. APPLICATION FILED OCT. 28, 1910.

Patented Oct. 31, 1911.

Witnesses r I Attorneys COLUMBIA FLAXUGIIAPH CO..WASH|NK1TON, D. n;

DELAVAN V. BURRELL, OF ROCKY FORD, COLORADO.

GENTBIIEUGAL PUMP.

Specification of Letters Patent.

Patented Oct. 31, 1911.

Application filed October 28, 1910. Serial No. 589,587.

To all whom it may concern:

Be it known that I, DELAVAN V. BUR- nnLL, a citizen of the United States, residing at Rocky Ford, in the county of Otero and State of Colorado, have invented a new and useful Centrifugal Pump, of which the following is a specification.

It is the object of the present invention to provide an improved construction of centrifugal pump and the invention aims particularly to provide a pump of this type which may be operated with the expenditure of less power than is required to operate similar pumps.

The pump embodying the present invention is designed particularly for use in districts where it is necessary to elevate a considerable quantity of water for irrigation purposes without the use of expensive pumping machinery.

In the accompanying drawings, Figure 1 is a vertical sectional view through a pump constructed in accordance with the present invention. Fig. 2 is a horizontal sectional view on the line 22 of Fig. 1.

In the drawings, the pump embodying the present invention is illustrated as arranged in a well indicated by the numeral 5 and the pump embodies, among other elements a casing which as indicated by the numeral 6 is cylindrical, and is of a length to extend from the upper end of the well to a point a greater or less distance below the surface of the water in the well. closed at its lower end and at its upper end is provided with a shallow cylindrical discharge head indicated by the numeral 7, the head being provided with a spout 8 which leads tangentially therefrom, one wall of the spout extending across the floor of the head as indicated by the numeral 9. The casing 6 is supported and braced within the well 5 in any desirable manner.

Mounted at the top of the well 5 is a frame 10 in which is journaled the upper end of a shaft indicated by the numeral 11, there being a drive pulley 12 secured upon the shaft at its said upper end. At the lower end of the shaft 11 there is secured an inverted conical head 13 in which is arranged an intake pipe 14 having branches 15 which project upwardly radially from its upper end. These branches 15 it may be stated at this point, may be straight as shown in the drawings or their upper ends may be turned to extend in a direction oppo- The casing 6 is.

.site to the direction of rotation of the shaft,

as is common insimilar branches in pump structures of this type.

The spout 8 which leads from the discharge head of the pump terminates at its discharge end above a trough 16 into which the water elevated by the pump is discharged although it is of course to be understood that the water may be led from the discharge spout in any other conventional manner.

In operation, power is applied to the pulley 12 and the shaft 11 is rapidly rotated together with the head 13 carried at its lower end. The rapid rotation of this head serves to throw the water by centrifugal force from the branches 15 of the intake pipe 14 and inasmuch as the casing 6 is closed at its lower end and the said intake pipe rotatably fits through the said end of the casing, water will flow through the said pipe and its branches into the casing and will accumulate therein until it discharges at the upper end of the casing. The elevation of the water is materially assisted by the vortical movement given the water as it accumulates and rises in the casing. It will be understood at this point that the wall 9 of the discharge spout arrests this vortical movement of the water as it entersthe discharge head 7 and consequently there will be a steady flow of water through the discharge spout.

WVhat is claimed as new is 1. In a centrifugal pump, a stationary cylindrical casing provided with an open discharge end, a shaft journaled for rotation concentrically of said casing and extending to the lower end thereof, a funnel-shaped inlet end carried by the lower end of said shaft and journaled in the lower end concentrically of the casing and provided with a series of upwardly and outwardly extending flanges communicating with the intake, whereby the whirling action of the intake will cause the water to be fed upwardly from the inlet end at an obtuse angle against the walls of the casing above the upper edge of the funnel shaped inlet and simultaneously whirl the water within the casing to produce an elongated funnel-shaped cavity extending from the center of the casing to its upper discharge end, and a discharge arranged tangentially to the upper end of the casing whereby the discharge of the water is taken from the outer periphery of the open end of the casing and flows continuously to the discharge.

2. In a centrifugal pump, a stationary vertically disposed cylindrical casing having a closed lower end disposed normally below the surface of the water to be elevated, a shallow cylindrical discharge end concentrically disposed at the upper end of the cylinder, a spout leading therefrom at a tangent to the cylinder and head, a vertical shaft disposed concentrically of the cylindrical casing and the full length thereof, an inverted conical head secured to the lower end of the shaft within the casing, the inclined walls thereof being disposed at an obtuse angle to the walls of the cylindrical casing, an intake pipe journaled for rotation concentrically through the bottom of the casing and carried by the conical head at the apex thereof, and a series of branch pipes leading from said intake within the conical head, the inclination of said branch pipes conforming to the inclined walls of the conical head, and forming a series of water discharges within the casing and also means to impart an upward whirling or spiral action to the water within the casing to cause the discharge thereof at the periphery of the open end of the cylindrical casing into the shallow discharge end and tangential spout.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

DELAVAN V. BURRELL.

WVitnesses:

M. M. WALLACE, C. L. HAHN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

